| No. | Class | F.M. Whyte | Gauge | Railroad Line | Location | Status | Builder Info | Notes |
|---|---|---|---|---|---|---|---|---|
| 9 (6) | 70-3 | Climax3Tr | 4'-8½" | CSRR (Moore, Keppel & Co.) | Cass Scenic Railroad State Park, Cass, WV | operational | Climax #1551, 1919 | Restored to operation in September 2019. Only operating Climax3Tr type in the USA. |
| 10 | Climax3Tr | 4'-8½" | Hillcrest Lumber | Mineral Shops, Mt. Rainier Scenic Railroad, Mineral, WA | stored | Climax #1693, 1928 | Was operational, but is now placed in storage due to the closure of the Mt. Rainier Scenic Railroad in May 2020. | |
| 3 | Climax3Tr | 4'-8½" | FruitGrowers | RailGiants Train Museum, Pomona, CA | display | Climax #932, 1909 |